.container {
    padding: 15px;
    height: 100%;
}

.content {

}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    height: 52px;
    border-top: 1px solid #F4F4F4;
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    padding: 0 15px;
    box-sizing: border-box;
}